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Winston Arithmetics. Seeing-thinking-doing, Etc. (By L.J. Brueckner, Elda L. Merton, Foster E. Grossnickle.) [With Workbooks and Teachers' Guides.].

Leo John Brueckner

出版	Philadelphia, 1952
URL	http://books.google.com.hk/books?id=el36MgEACAAJ&hl=&source=gbs_api